【作者】 王熙; 張佳; 張國珍;
【Author】 WANG Xi,ZHANG Jia,ZHANG Guo-zhen (Department of Plant Pathology,Key Laboratory of Plant Pathology,Ministry of Agriculture,China Agricultural University,Beijing 100193)
【機構】 中國農業大學植物病理學系農業部植物病理學重點實驗室;
【摘要】 本研究觀察了野生和栽培蛹蟲草菌株在繼代培養過程中主要生物學性狀的變化。結果顯示,隨著培養代數的增加,蛹蟲草的生物學性狀發生了明顯的改變,表現為菌絲生長速率逐漸下降,菌落顏色逐漸變淡并有角突變出現,產孢量明顯減少,子實體形成能力也逐漸減弱甚至不能產生。為防止蛹蟲草菌株的退化,應盡量減少在人工培養基上的培養代數。
【Abstract】 The main biological characteristics of the wild and cultivated strains of Cordyceps militaris during successive transfer culture were observed.The results indicated that the biological characteristics of Cordyceps militaris changed distinctly with the increase of culture generations.The mycelial growth rate slowed down,the colony color gradually faded with the appearance of colony sector,the sporulation decreased dramatically,and the ability of fruiting body formation degenerated or even failed ...
【關鍵詞】 蛹蟲草; 生長速率; 產孢; 子實體形成;
【Key words】 Cordyceps militaris; Growth rate; Sporulation; Fruiting body formation;
【基金】 國家自然科學基金項目(30770011)
【分類號】S567.35